The Toad Men wish to invade Earth but first must capture the Earth's most intelligent mind in order to determine Earth's weaknesses. Little do they realize that by capturing Bruce Banner they also captured the Incredible Hulk!

Banished to outer space, Bruce Banner encounters the strange effects of cosmic rays causing a psychic link between him and his companion, Rick Jones. A link that will be put under the test with the Ringmaster's hypnotic ability.

An invader from space calling himself the Metal Master seeks to rule the Earth, and his power to control metal might be too much for the Hulk alone. He might have to get some help from Rick Jones and his newly formed Teen Brigade!